6920063405 has 4 divisors (see below), whose sum is σ = 8304076092. Its totient is φ = 5536050720.

The previous prime is 6920063389. The next prime is 6920063411. The reversal of 6920063405 is 5043600296.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1934856169 + 4985207236 = 43987^2 + 70606^2 .

It is not a de Polignac number, because 6920063405 - 2⁴ = 6920063389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 692006336 + ... + 692006345.

It is an arithmetic number, because the mean of its divisors is an integer number (2076019023).

Almost surely, 2^6920063405 is an apocalyptic number.

It is an amenable number.

6920063405 is a deficient number, since it is larger than the sum of its proper divisors (1384012687).

6920063405 is a wasteful number, since it uses less digits than its factorization.

6920063405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384012686.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 6920063405 is about 83186.9184727984. The cubic root of 6920063405 is about 1905.6217070058.

The spelling of 6920063405 in words is "six billion, nine hundred twenty million, sixty-three thousand, four hundred five".